Update mqttd hal code, can control relay now

Guo Wenxue

2019-06-27 b64d6ff04401ed85fce543b8e20c8c360fb284f5

 mqttd/hal/led.c

@@ -7,10 +7,10 @@
 *
 *     pi@raspberrypi:~ $ gpio readall show BCM and wPi pinmap  
 *
 *                 LED      BCM           wPi 
 *                  G ---- GPIO.13  ---- GPIO.23
 *                  R ---- GPIO.19  ---- GPIO.24    
 *                  B ---- GPIO.26  ---- GPIO.25
 *                 LED      BCM           wPi           Phy Pin
 *                  G ---- GPIO.13  ---- GPIO.23  ----   #Pin33
 *                  R ---- GPIO.19  ---- GPIO.24  ----   #Pin35  
 *                  B ---- GPIO.26  ---- GPIO.25  ----   #Pin37
 *                  I ---- GND      ----
 *                 
 *        Version:  1.0.0(2018/10/14)
@@ -35,11 +35,9 @@
{
   int         i; 
    
    wiringPiSetup();

   for(i=0; i<LED_MAX; i++)
   {
             pinMode( led_gpio[i], OUTPUT );
        pinMode( led_gpio[i], OUTPUT );
   }
}

@@ -48,11 +46,10 @@
   if( which<0 || which>=LED_MAX )
      return -1;


   if( OFF == cmd )
             digitalWrite (led_gpio[which], LOW);
   else
             digitalWrite (led_gpio[which], HIGH);
        digitalWrite (led_gpio[which], LOW); 
    else 
        digitalWrite (led_gpio[which], HIGH);

   return 0;
}